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MÉTHODE DE FABRICATION DE PIÈCES DENTAIRES D'AJUSTEMENT ET ÉBOUCHE À CET EFFET
专利权人:
Sirona Dental Systems GmbH;DENTSPLY SIRONA Inc.
发明人:
申请号:
EP18206375.0
公开号:
EP3653167A1
申请日:
2018.11.15
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
In the method for producing medical, in particular dental fitting bodies 3 with a specified or custom three-dimensionally curved outer contour 3.1 or preform of the fitting body 3 with a rough outer contour, which has an allowance relative to the outer contour, a workpiece 2, from which the fitting body 3 or its preform is produced, is machined in a material-removing manner by means of a tool 5 engaging in the workpiece 2. The tool path 1 has directional components transverse to the run of the contour 3.1 to be produced and the cutting edges 8 have a defined geometry. The tool 5 engages into the workpiece 2 at a cutting arc angle alpha of the circumferential surface 7 of less than 90° on average and at an insertion depth (ta, tb, tg) of at least twice the tool diameter (D) and the machining of the workpiece 2 occurs along a tool path 1 with directional components contrary to a machining direction following the outer contour (3.1).A workpiece has a recess, in which a machining tool is positioned prior to the machining occurring essentially via its circumferential surface.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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